131 Works

Proximity to crop relatives determines patterns of natural selection in a wild sunflower

Nora Mitchell, Scott Chamberlain & Kenneth Whitney
Abiotic and biotic heterogeneity result in divergent patterns of natural selection in nature, with important consequences for fundamental evolutionary processes including local adaptation, speciation and diversification. However, increasing amounts of the global terrestrial surface are homogenized by agriculture (which covers nearly 50% of terrestrial vegetated land surface) and other anthropogenic activities. Agricultural intensification leads to highly simplified biotic communities for many taxa, which may alter natural selection through biotic selective agents. In particular, the presence...

Snowpack, precipitation, and temperature measurements at the Central Sierra Snow Laboratory for water years 1971 to 2019

Randall Osterhuber & Andrew Schwartz
The snowpack of the Sierra Nevada Mountains is an indispensable freshwater resource for large portions of western North America. The Central Sierra Snow Laboratory (CSSL) has had an intigral role in the measurement of snowfall and snowpack properties within the Sierra Nevada Mountains, and has worked to develop a physical understanding of the processes that govern snow since 1946. This dataset contains measurements of temperature, precipiation quantity, snowfall, and snowpack characteristics including 24-hour snowfall, snowpack...

Ecological basis and genetic architecture of crypsis polymorphism in the desert clicker grasshopper (Ligurotettix coquilletti)

Timothy O'Connor, Marissa Sandoval, Jiarui Wang, Jacob Hans, Risa Takenaka, & Noah Whiteman
Color polymorphic species can offer exceptional insight into the ecology and genetics of adaptation. Although the genetic architecture of animal coloration is diverse, many color polymorphisms are associated with large structural variants and maintained by biotic interactions. Grasshoppers are notably polymorphic in both color and karyotype, making them excellent models for understanding the ecological drivers and genetic underpinnings of color variation. Banded and uniform morphs of the desert clicker grasshopper (Ligurotettix coquilletti) are found across...

Drivers of change and stability in the gut microbiota of an omnivorous avian migrant exposed to artificial food supplementation

Sasha Pekarsky, Ammon Corl, Sondra Turjeman, Pauline Kamath, Wayne Getz, Bowie Rauri, Yuri Markin & Ran Nathan
Human activities shape resources available to wild animals, impacting diet and likely altering their microbiota and overall health. We examined drivers shaping microbiota profiles of common cranes (Grus grus) in agricultural habitats by comparing gut microbiota and crane movement patterns (GPS-tracking) over three periods of their migratory cycle, and by analyzing the effect of artificially-supplemented food provided as part of a crane-agriculture management program. We sampled fecal droppings in Russia (non-supplemented, pre-migration) and in Israel...

A Benchmark Data Set for Hydrogen Combustion

Akshaya Das, Christopher J. Stein, Farnaz Heidar-Zadeh, Luke Bertels, Meili Liu, Xingyi Guan, Mojtaba Haghighatlari, Jie Li, Oufan Zhang, Hongxia Hao, Itai Leven, Martin Head-Gordon & Teresa Head-Gordon

Snow modulates winter energy use and cold exposure across an elevation gradient in a montane ectotherm

Kevin Roberts, Nathan Rank, Elizabeth Dahlhoff, Jonathon Stillman & Caroline Williams
Snow insulates the soil from air temperature, decreasing winter cold stress and altering energy use for organisms that overwinter in the soil. As climate change alters snowpack and air temperatures, it is critical to account for the role of snow in modulating vulnerability to winter climate change. Along elevational gradients in snowy mountains, snow cover increases but air temperature decreases, and it is unknown how these opposing gradients impact performance and fitness of organisms overwintering...

Spatial phylogenetics of butterflies in relation to environmental drivers and angiosperm diversity across North America

Chandra Earl, Michael W. Belitz, Shawn W. Laffan, Vijay Barve, Narayani Barve, Douglas E. Soltis, Julie M. Allen, Pamela S. Soltis, Brent D. Mishler, Akito Y. Kawahara & Robert Guralnick
Broad-scale quantitative assessments of biodiversity and the factors shaping it remain particularly poorly explored in insects. Here, we undertook a spatial phylogenetic analysis of North American butterflies via assembly of a time-calibrated phylogeny of the region coupled with a unique, complete range assessment for ~75% of the known species. We utilized a suite of phylodiversity metrics and associated environmental data to test whether climate stability and temperature gradients have shaped North American butterfly phylogenetic diversity...

Data for: Human food use increases plant geographic ranges in the Sonoran Desert

Benjamin Blonder, Carolyn Flower, Wendy Hodgson, Andrew Salywon, Brian Maitner, Brian Enquist & Matthew Peeples
Aim. Climate is usually regarded as the main determinant of plant species’ distributions. However, past human use of species for food also may have influenced distributions. We hypothesized that human-mediated dispersal has resulted in food plants occupying more of their potential geographic range. We also hypothesized that key ecological traits could predispose a species to occupy more of its potential climatic geographic range and be selected by humans for food. Location. The Sonoran Desert of...

Cytotype and genotype predict mortality and recruitment in Colorado quaking aspen (Populus tremuloides)

Benjamin Blonder, Courtenay Ray, James Walton, Marco Castaneda, K. Dana Chadwick, Michael Clyne, Pierre Gaüzere, Lars Iversen, Madison Lusk, G. Richard Strimbeck, Savannah Troy & Karen Mock
Species responses to climate change depend on environment, genetics, and interactions among these factors. Intraspecific cytotype (ploidy level) variation is a common type of genetic variation in many species. However, the importance of intraspecific cytotype variation in determining demography across environments is poorly known. We studied the tree species quaking aspen (Populus tremuloides), which occurs in diploid and triploid cytotypes. This widespread species is experiencing contractions in its western range, which could potentially be linked...

PSP FIELDS Digital Fields Board (DFB) AC-coupled Searchcoil Magnetometer, SCM, Spectra, Low Frequency, High Gain, u-component, Sensor coordinates, Level 2 (L2), 0.873813 s Data

Stuart D. Bale, Thierry Dudok de Wit, David M. Malaspina, Katherine A. Goodrich, Marc Pulupa, Timothy Quinn & Peter Schroeder
PSP FIELDS Digital Fields Board, DFB, SCMulflg data: The DFB is the low frequency, less than 75 kHz, component of the FIELDS experiment on the Parker Solar Probe spacecraft. For a full description of the FIELDS experiment. DFB AC spectra data consist of power spectral densities as a function of frequency and time. These spectra are averaged over both frequency and time. The Level 2 data products contained in this data file have been calibrated...

PSP FIELDS Digital Fields Board (DFB) DC-coupled Searchcoil Magnetometer, SCM, Bandpass filtered, Low Frequency, High Gain, v-component, Sensor coordinates, Level 2 (L2), 0.873813 s Data

Stuart D. Bale, Thierry Dudok de Wit, David M. Malaspina, Alexandros Chasapis, Marc Pulupa, Timothy Quinn & Peter Schroeder
PSP FIELDS Digital Fields Board, DFB, SCMvlfhg data: The DFB is the low frequency, less than 75 kHz, component of the FIELDS experiment on the Parker Solar Probe spacecraft. For a full description of the FIELDS experiment. DFB AC spectra data consist of power spectral densities as a function of frequency and time. These spectra are averaged over both frequency and time. The Level 2 data products contained in this data file have been calibrated...

PSP FIELD Digital Fields Board (DFB) Differential Voltage Burst Waveform, Level 2 (L2), 0.873813 s Data

Stuart D. Bale, David M. Malaspina, Katherine A. Goodrich, Marc Pulupa, Timothy Quinn & Peter Schroeder
PSP FIELDS Digital Fields Board (DFB), Differential Voltage data: The DFB is the low frequency, less than 75 kHz, component of the FIELDS experiment on the Parker Solar Probe spacecraft. For a full description of the FIELDS experiment and for a description of the DFB. DFB burst waveform data consist of short bursts of time-series data from various FIELDS sensors. These data have been filtered by both analog and digital filters. These data are pre-sorted...

PSP FIELDS Fluxgate Magnetometer (MAG) Magnetic Field Vectors, Spacecraft, SC, Coordinates, Level 2 (L2), 1 min Data

Stuart D. Bale, Robert J. MacDowall, Andriy Koval, Marc Pulupa, Timothy Quinn & Peter Schroeder
Parker Solar Probe FIELDS Instrument Suite Fluxgate Magnetometer, MAG, Data: The time resolution of the MAG time series data varies with instrument mode ranging from 2.289 samples/s to 292.9 samples/s. These two data sampling rates corresponding to 2 samples or 256 samples per 0.874 s where 0.874 s is equal to 2^25 divided 38.4 MHz. The Magnetometer has four ranges: ±1024 nT, ±4096 nT, ±16,384 nT, and ±65,536 nT. The Magnetometer Range is selected by...

PSP FIELDS Digital Fields Board (DFB) DC-coupled Single Ended Voltage Waveform, Monopole Mode, Level 2 (L2), PT0.027306S Data

Stuart D. Bale, David M. Malaspina, Katherine A. Goodrich, Marc Pulupa, Timothy Quinn & Peter Schroeder
PSP FIELDS Digital Fields Board, DFB, Single Ended Voltage data: The DFB is the low frequency, less than 75 kHz, component of the FIELDS experiment on the Parker Solar Probe spacecraft. For a full description of the FIELDS experiment. DFB DC spectra data consist of power spectral densities as a function of frequency and time. These spectra are averaged over both frequency and time. The Level 2 data products contained in this data file have...

PSP FIELDS Digital Fields Board (DFB) Searchcoil Magnetometer Waveform, Level 2 (L2), 3.413 ms Data

Stuart D Bale, Thierry Dudok de Wit, David M. Malaspina, Trevor A. Bowen, Katherine A. Goodrich, Marc Pulupa, Timothy Quinn & Peter Schroeder
PSP FIELDS Digital Fields Board, DFB, Search Coil Magnetometer data: The DFB is the low frequency, less than 75 kHz, component of the FIELDS experiment on the Parker Solar Probe spacecraft. For a full description of the FIELDS experiment. DFB DC spectra data consist of power spectral densities as a function of frequency and time. These spectra are averaged over both frequency and time. The Level 2 data products contained in this data file have...

REISSNER–NORDSTROM¨ EXPANSION

Emil Prodonov, Rossen Ivanov & V.G. Gueorguiev

Age affects strain-rate dependence of the mechanical properties of kelp tissue

Nicholas Burnett & M.A.R. Koehl
Premise: The resistance of macroalgae to hydrodynamic forces imposed by ambient water motion depends in part on the mechanical properties of their tissues. In wave-swept habitats, tissues are stretched (strained) at different rates as hydrodynamic forces constantly change. Kelp have tissues of different ages, and mechanical properties of kelp tissue change with age. However, the effects of age on the strain-rate dependence of the mechanical behavior of kelp tissues is unknown. Methods: Using the kelp...

Data from: Table-top extreme ultraviolet second harmonic generation

Michael Zuerch
The lack of available table-top extreme ultraviolet (XUV) sources with high enough fluxes and coherence properties have limited the availability of nonlinear XUV and x-ray spectroscopies to free electron lasers (FEL). Here, we demonstrate second harmonic generation (SHG) on a table-top XUV source for the first time by observing SHG near the Ti M2,3-edge with a high-harmonic seeded soft x-ray laser (HHG-SXRL). Further, this experiment represents the first SHG experiment in the XUV. First-principles electronic...

Phenotype data, genotype input files, and scripts related to adaptation in wild house mice from Western North America

Kathleen Ferris, Andreas Chavez, Taichi Suzuki, Megan Phifer-Rixey, Ke Bi, Michael Nachman & Elizabeth Beckman
Parallel changes in genotype and phenotype in response to similar selection pressures in different populations provide compelling evidence of adaptation. House mice (Mus musculus domesticus) have recently colonized North America and are found in a wide range of environments. Here we measure phenotypic and genotypic differentiation among house mice from five populations sampled across 21° of latitude in western North America, and we compare our results to a parallel latitudinal cline in eastern North America....

PSP FIELDS Digital Fields Board (DFB) AC-coupled Searchcoil Magnetometer, SCM, Bandpass filtered, Low Frequency, High Gain, u-component, Sensor coordinates, Level 2 (L2), 0.873813 s Data

Stuart D. Bale, Thierry Dudok de Wit, David M. Malaspina, Alexandros Chasapis, Marc Pulupa, Timothy Quinn & Peter Schroeder
PSP FIELDS Digital Fields Board, DFB, SCMulfhg data. The DFB is the low frequency, less than 75 kHz, component of the FIELDS experiment on the Parker Solar Probe spacecraft. DFB AC bandpass data consist of peak and average values of the absolute value of bandpassed time series waveform data over a time interval equal to the reporting cadence. The AC bandpass data have the peak response frequency of each bin reported in the metadata. The...

Data for: Radiative feedbacks on land surface change and associated tropical precipitation shifts

Marysa Lague, William Boos & Abigail Swann
Changes in land surface albedo and land surface evaporation modulate the atmospheric energy budget by changing temperatures, water vapor, clouds, snow and ice cover, and the partitioning of surface energy fluxes. Here idealized perturbations to land surface properties are imposed in a global model to understand how such forcings drive shifts in zonal mean atmospheric energy transport and zonal mean tropical precipitation. For a uniform decrease in global land albedo, the albedo forcing and a...

GEOS-Chem nested simulation over the Kīlauea volcanic plume

Chi Li & Ronald Cohen
This dataset contains the GEOS-Chem chemical transport model (version 12.8.2) simulation that guides the interpretation of the abundance and source and sink processes affecting sulfur dioxide and sulfate aerosols from the volcanic plume regime during May-September 2008 in Li and Cohen (2021) and can be analyzed using codes at https://github.com/ChiLi90/LifetimeFit/tree/master.

Pierce's disease vector transmission-preference experiment on PdR1 resistant grapevines

Adam Zeilinger, Dylan Beal, Anne Sicard, Christopher Wallis, M. Andrew Walker & Rodrigo Almeida
Host defense against vector-borne plant pathogens is a critical component of integrated disease management. However, theory predicts that traits that confer tolerance or partial resistance can, under certain ecological conditions, enhance the spread of pathogens and spillover to more susceptible populations or cultivars. A key component driving such epidemic risk appears to be variation in host selection behavior of vectors based on infection status of the host. While recent theory has further emphasized the importance...

Dataset for: Factory Benefits to Paying Workers More: The Critical Role of Compensation Systems in Apparel Manufacturing

Niklas Lollo & Dara O'Rourke
While many stakeholders believe worker wages in global supply chains are too low, there is disagreement about what, if anything, can be done to raise wages. Through a two-year quasi-experiment in an operating apparel factory, we assess the effects on productivity and profits of raising worker wages with a re-designed compensation system. We show that, even within current factory margins and constraints, important wage gains (4.2–9.7%) are possible and profitable. Productivity increased 8–10%-points while turnover...

A vertebrate adaptive radiation is assembled from an ancient and disjunct spatiotemporal landscape

Emilie Richards
To investigate the origins and stages of vertebrate adaptive radiation, we reconstructed the spatial and temporal histories of adaptive alleles underlying major phenotypic axes of diversification from the genomes of 202 Caribbean pupfishes. On a single Bahamian island, ancient standing variation from disjunct geographic sources was reassembled into new combinations under strong directional selection for adaptation to novel trophic niches of scale-eating and molluscivory. We found evidence for two longstanding hypotheses of adaptive radiation: hybrid...

Registration Year

  • 2021
    131

Resource Types

  • Dataset
    128
  • Output Management Plan
    2
  • Text
    1

Affiliations

  • University of California, Berkeley
    131
  • Laboratory for Atmospheric and Space Physics
    30
  • University of Orléans
    25
  • Goddard Space Flight Center
    5
  • University of Washington
    3
  • Utah State University
    3
  • University of Colorado Boulder
    3
  • National Research Institute for Agriculture, Food and Environment
    2
  • Stanford University
    2
  • University of Queensland
    2